The generator matrix

 1  0  0  1  1  1  0  4  1  1  1  2  1  2  2  1  0  1  6  1  1  2  1  6  1  1  2  1  2  1  1  0  4  1  1  1  0  1  4  1  0  1  1  6  1  1  1  0  1  1  2  1  1  6  6  1  1  6  0  1  0  1  1  4  1  1  6  1  1  1  0  1  4  6  1  1  2  4  1  1  1  1  1  0  1
 0  1  0  0  1  3  1  6  2  1  2  1  3  1  6  1  1  2  1  7  6  1  7  2  0  4  1  7  1  0  5  1  0  4  1  0  2  0  1  3  1  4  7  4  7  4  7  1  7  5  1  6  5  1  6  1  6  1  6  0  2  2  3  1  5  5  1  3  1  4  1  6  6  1  7  7  1  1  4  3  4  1  5  0  0
 0  0  1  1  1  4  5  1  5  2  6  6  1  7  1  1  7  5  6  0  0  3  2  1  5  6  0  7  0  3  7  7  1  4  6  4  1  3  4  7  5  4  2  1  5  5  7  1  6  0  0  3  5  7  1  7  2  6  1  2  1  2  0  2  3  2  2  5  1  2  3  0  1  0  3  2  5  1  3  0  4  1  0  2  4
 0  0  0  2  6  0  6  6  6  0  0  0  6  2  2  4  4  0  6  2  6  4  2  0  4  6  2  0  4  6  6  6  6  0  2  2  0  4  6  6  4  6  4  6  0  6  2  2  4  2  6  2  0  4  4  0  0  4  4  0  6  6  4  2  0  6  0  2  6  2  2  4  2  6  2  6  4  2  2  6  2  2  0  2  4
 0  0  0  0  4  0  4  4  4  4  4  4  0  0  0  4  0  0  0  0  0  4  4  4  4  4  4  0  0  4  0  4  0  4  0  4  4  0  0  4  4  0  0  4  4  0  4  0  4  4  4  4  4  0  4  0  0  4  0  0  0  4  0  0  4  0  0  4  0  4  4  4  0  0  0  0  4  4  0  4  4  4  0  4  0

generates a code of length 85 over Z8 who´s minimum homogenous weight is 78.

Homogenous weight enumerator: w(x)=1x^0+91x^78+212x^79+294x^80+346x^81+395x^82+428x^83+374x^84+300x^85+320x^86+334x^87+200x^88+150x^89+128x^90+120x^91+119x^92+84x^93+74x^94+34x^95+23x^96+30x^97+9x^98+8x^99+13x^100+5x^102+2x^105+2x^106

The gray image is a code over GF(2) with n=340, k=12 and d=156.
This code was found by Heurico 1.16 in 1.06 seconds.